摘要
目的:研制一种用于多屉战备药箱的RFID阅读器天线,该天线可实现药箱内各屉药品RFID标签的有效识别。方法:采用多个覆盖较小区域线圈的串并组合来构成一个覆盖较大区域的天线线圈。由于缩小了单个线圈的面积,在组合线圈的工作区域不易出现阅读盲区,有助于提高RFID系统的识读性能。结果:药箱箱体大小58cm×50cm×62cm,内部分2～3层,设计成用4个小线圈组成的组合天线来覆盖整个抽屉底部,实验中测得该天线的阅读范围约为54cm×48cm×30cm,可读出放置在药箱抽屉底层的全部标签和大部分放置在药箱抽屉上层的标签。结论:采用所设计的天线,可以准确识读药箱内各屉药品RFID标签,且有利于降低药箱RFID系统成本,具有广阔的应用前景。
Objective In order to increase the operation coverage of high-frequency （HF） RFID reader without increasing the power output, a novel RFID antenna for muhi-drawer intelligent medicine-chest are proposed. Using this antenna, the RFID tags on medicine can be read effectively. Methods Several small antenna coils can be combined in series or parallel connection to make a more efficient RFID reader antenna. The use of small coil will be helpful to eliminate the blind spot of RFID reader with large coil antenna. Reeulte The medicine-chest＇s size is 58 cm×50 cm×62 cm^3. which includes two or three layers. We design four combined small antenna coils to cover the drawer. The test result shows that the antenna read region is about 54 cm×48 cm×30 cm, all RFID tags in the medicine-chest drawer bottom and most RFID tags in the drawer top can be read. Conclusion The multi-drawer coil antenna designed can effectively recognize the RFID tags in medicine-chest. It has a wide application prospect.[Chinese Medical Equipment Journal ,2008,29（12） ： 14--161
出处
《医疗卫生装备》
CAS
2008年第12期14-16,共3页
Chinese Medical Equipment Journal
基金
江苏省高技术研究计划项目(BG2007029)
